FilterButtonPresenterTest

FilterButtonPresenterTest.java

@RunWith(MockitoJUnitRunner.class)
class FilterButtonPresenterTest {

  @Mock
  AccountInteractor accountInteractor;
  @Mock
  StateView<FilterButtonState> view;
  @InjectMocks
  FilterButtonPresenter testee;

  @Test
  void userIsLoggedIn(){
    given(accountInteractor.isUserLoggedIn())
      .willReturn(just(true));
    
    // When 
    testee.onStart(view);

    // Then
    verify(view)
      .updateState(new FilterButtonState(true));
  }

  @Test
  void userIsLoggedOut(){
    given(accountInteractor.isUserLoggedIn())
      .willReturn(just(false));
    
    // When 
    testee.onStart(view);

    // Then
    verify(view)
      .updateState(new FilterButtonState(false));
  }
 
}